A marketing budget is not an expense you hope pays off. It is an investment you should be able to explain: what it costs, what it should produce, and when you will check. If you have been guessing, here are three ways to set a budget and a simple method to split it across channels.
Numbers are examples to show the math, not recommendations for your business.
Method 1: percentage of revenue
Many businesses set marketing at a percentage of revenue. It is easy to calculate and tends to scale with the business. The challenge is choosing the percentage. It depends on your industry, margins, competition, and growth goals. A business that wants rapid growth may invest a higher share than one that wants to hold steady.
Pros: simple, scales with revenue. Cons: does not connect directly to results, and a down year can cut spending exactly when you need leads.
Method 2: goal-based
Start with the goal and work backward.
- How many new customers do you want?
- What does it cost to win one, based on your current numbers?
- Multiply to get the budget.
Example: you want 20 new customers per month and your cost per customer is about $200, so the budget is around $4,000 per month. If your target cost is lower than your current cost, you need to improve results as well as spend.
Pros: tied to results. Cons: relies on good data about your cost per customer, which you may need to establish by testing.
Method 3: affordability and testing
If you are new to paid marketing or unsure of your numbers, start with an amount you can comfortably afford to lose, run a structured test for a few months, then reset the budget based on what you learn.
Pros: safe, and it creates real data. Cons: too small a budget may not teach you anything.
Many businesses combine methods: a percentage as a ceiling, a goal-based target, and a test to validate.
What to include in the budget
- Ad spend on platforms such as Google and Meta
- Agency or freelancer fees
- Creative: photos, video, and design
- Website costs: hosting, updates, and improvements
- Tools: call tracking, email, CRM, and analytics
- Reputation: review tools and Business Profile management
- Print and local sponsorships, if relevant
Track each category so you can see the true cost of winning a customer.
How to split across channels
A reasonable approach:
- Put most of the budget where buyers are already looking. For many local services, that is search ads and your Business Profile.
- Reserve a share for staying visible. Social ads, email, and retargeting keep your name in front of people.
- Invest in your foundation. A fast, clear website and a process for answering calls make every other dollar work harder.
- Keep a small testing fund for new ideas.
Review the mix every quarter based on cost per customer, not cost per click.
Check that the numbers work
Before you commit, test your assumptions. Our free ROAS Calculator shows your break-even point and whether your ads can be profitable at your margins. The LTV and CAC Calculator helps you see how much you can afford to pay to win a customer over their lifetime.
Adjust as you learn
- If cost per customer is below your target: consider scaling in steps.
- If it is above target: look at conversion rate, close rate, targeting, and creative before adding spend.
- If seasonality matters: shift budget toward your busy season, if you have capacity.
Common mistakes
- Setting a budget with no goal
- Cutting marketing in slow months, then wondering why leads dry up
- Spreading money over too many channels
- Not tracking results
- Ignoring the cost of unanswered calls and a slow website
Frequently asked questions
Monthly for performance, and quarterly for bigger shifts.
Focus on the highest-return basics: your Business Profile, reviews, a clear website, and one well-run paid channel.
Not necessarily. Adjust to seasons and capacity.
What to do next
If you want help building a budget around your own numbers, book a free strategy call. You can also see what we offer across advertising, websites, and automation.
